If you weren't dependent on the vehicle to be able to travel, sure. Or as a backup home if you get evicted.
The deliverer has to be able to earn $1.15 (at least) per dollar depreciated from the vehicle for the work to be "worth it".
(Income - expenses) / hours worked = hourly wage
Is your hourly wage reasonable? If so, it may make sense to optimize away your expenses and generally stay the course. If it's not, would changing your work hours or location make it reasonable?
Unfortunately, I get your feeling that people only look at the income and ignore the rest of the equation (hey, I got $50 tonight! I had to drive 100 miles though...). If you're making $3/trip, you had better drive less than 6 miles or you just lose.